ARMRIT EXAM ( LATEST UPDATE) QUESTIONS AND WELL DETAILED ANSWERS 100- CORRECT

ARMRIT EXAM (2025-2026 LATEST UPDATE)
QUESTIONS AND WELL DETAILED ANSWERS 100%
CORRECT

Different ||tissues ||that ||have ||signals ||that ||appear ||similar ||on ||an ||MR ||image ||are ||described

as:

A) hypointense

B) hyperintense

C) isointense

D) isodense |-CORRECTANSWER ||isointense



in ||a ||large ||main ||magnetic ||field ||such ||as ||those ||employed ||in ||MRI, ||the ||motion ||of ||a
||hydrogen




proton ||has ||been ||described ||as ||wobbling ||like ||a ||spinning ||top. ||this ||motion ||is ||called

A) precession

B) resonance

C) frequency

D) angular |momentum ||-CORRECTANSWER ||precession



magnetic ||resonance ||imaging ||is ||derived ||from ||the ||process ||known ||as:

A) magnetic ||resonance ||angiography

B) magnetic ||relaxation ||imaging

C) nuclear ||magnetic ||resonance

D) nuclear ||resonance ||imaging ||-CORRECTANSWER ||nuclear ||magnetic ||resonance

,Once ||the ||nmv ||has ||moved ||away ||from ||equilibrium, ||the ||following ||will ||occur

A) the ||longitudinal ||component ||will ||increase

B) the ||transverse ||component ||will ||decrease

C) the ||longitudinal ||component ||will ||stay ||the ||same

D) the ||transverse ||component ||will ||increase ||-CORRECTANSWER ||the ||transverse

component ||will ||increase



In ||MR, ||substances ||respond ||to ||a ||specific ||radio ||frequency ||which ||is ||known ||as:

A) magnetic ||frequency

B) radio ||frequency

C) gyro-magnetic ||frequency

D) resonance |frequency ||-CORRECTANSWER ||resonance |frequency



the ||introduction ||of ||gadolinium ||based ||contrast ||enhancement ||agents ||by ||intra-venous

injection ||can ||involve ||passing ||through ||an ||abnormal ||blood ||brain ||barrier. ||the ||tissue

compartments ||involved ||are ||the:

A) intravascular ||to ||interstitial

B) extracellular ||to ||intracellular

C) hepatobiliary ||to ||renal

D) extradural ||to ||renal ||-CORRECTANSWER ||intravascular ||to ||interstitial

,t2 ||is ||the ||measurement ||of ||time ||fot ||the ||transverse ||component ||of ||the ||NMV ||to ||decrease

what ||percentage ||of ||its ||maximum ||value ||after ||the ||application ||of ||a ||90 ||degree ||radio-

frequency ||pulse

A) 33%

B) 63%

C) 37%

D) 67% ||-CORRECTANSWER ||37%



in ||the ||USA, ||the ||MRI ||system's ||magnetic ||field ||and ||vector ||that ||represents ||it ||is ||symbolized:

A) B1

B) B2

C) B3

D) B0 ||-CORRECTANSWER ||B0



The ||resonance ||frequency ||of ||any ||substance ||in ||a ||magnetic ||field ||can ||be ||calculated ||by

employing ||the

A) damadian ||equation

B) larmor ||equation

C) faraday ||equation

D) lauterbur |equation ||-CORRECTANSWER ||Larmor ||equation



in ||a ||pulse ||sequence, ||transmitting ||an ||initial ||90 ||degree ||radio-frequency ||pulse ||will ||cause

the ||NMV ||to:

, A) remain ||at ||equilibrium

B) shift ||in ||both ||size ||and ||direction

C) move ||to ||antiparallel

D) rephase ||-CORRECTANSWER ||shift ||in ||both ||size ||and ||direction



Which ||type ||of ||electromagnetic ||coils ||are ||designed ||to ||stimulate ||and ||detect ||an ||MR ||signal?

A) gradient ||coils

B) radio-frequency ||coils

C) shim ||coils ||-CORRECTANSWER ||radio-frequency



tissues ||that ||are ||less ||efficient ||at ||spin-spin ||interactions ||because ||they ||contain ||more ||free

water, ||such ||as ||CSF, ||should ||have

A) High ||T2 ||values ||and ||produce ||hypointense ||signals

B) HIgh ||T2 ||values ||and ||produce ||hyperintense ||signals

C) low ||T2 ||values ||and ||produce ||hypointnese ||signals

D) low ||T2 ||values ||and ||produce ||hyperintense ||signal ||-CORRECTANSWER ||High ||T2

values ||and ||produce ||hyperintense ||signals



magnetism ||can ||be ||defined ||as ||the ||ability ||of ||certain ||substances ||to ||attract:

A) Copper, ||aluminum, ||tin

B) Iron, ||cobalt, ||nickel

C) Bronze, ||niobium, ||titanium

D) Neodymium, ||niobium-titanium, ||lodestone ||-CORRECTANSWER ||Iron, ||cobalt, ||nickel